in reply to nightly backup of new files on a FTP-Site
First off rsync, as has been stated, really looks like the right way to go but just in case you would like to look at pure Perly approach check out merlyn's Smoke and Mirrors -- Linux Magazine (Jan 02).
mitd-Made in the Dark
'Interactive! Paper tape is interactive!
If you don't believe me I can show
you my paper cut scars!'
In Section
Seekers of Perl Wisdom